package com.studycloud.controller;

import com.studycloud.service.PaymentService;
import com.studyclud.entity.Payment;
import com.studyclud.result.CommonResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * 订单 控制层
 * @author JP
 */
@RestController
@Slf4j
public class PaymentController
{
    @Resource
    private PaymentService paymentService;

    @Value("${server.port}")
    private String serverPort;

    /**
     * 服务发现
     *        通过 DiscoverClient 对象可以达到服务溯源的效果,从而拿到服务注册方的信息
     */
    @Resource
    private DiscoveryClient discoveryClient;

    @PostMapping(value = "/payment/create")
    public CommonResult<Integer> create(@RequestBody Payment payment)
    {
        int result = paymentService.create(payment);
        log.info("************插入结果:"+result);

        if(result > 0)
        {
            return new CommonResult<>(200, "插入成功,serverPort:"+serverPort, result);
        }
        return new CommonResult<>(444,"插入失败",null);
    }

    @GetMapping(value = "/payment/getPaymenById/{id}")
    public CommonResult<Payment> getPaymenById(@PathVariable("id")Long id)
    {
        Payment paymen = paymentService.getPaymenById(id);
        log.info("************查询结果:"+paymen);

        if(paymen != null)
        {
            return new CommonResult<>(200,"查询成功,serverPort:"+serverPort,paymen);
        }
        return new CommonResult<>(444,"没有对应记录",null);
    }


    @GetMapping(value = "/payment/lb")
    public String getPaymentLB()
    {
        return serverPort;
    }

    @GetMapping(value = "/payment/discovery")
    public Object discovery()
    {
        // 方法一 : 服务发现
        List<String> services = discoveryClient.getServices();
        for (String s :services)
        {
            log.info("********element:"+s);
        }

        //方法二 : 服务发现
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance serviceInstance :instances)
        {
            log.info(serviceInstance.getServiceId()+","+serviceInstance.getHost()+","+serviceInstance.getUri());
        }
        return this.discoveryClient;
    }

    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeout()
    {
        try
        {
            TimeUnit.SECONDS.sleep(3);
        }
        catch (InterruptedException e)
        {
            e.printStackTrace();
        }
        return serverPort;
    }

}
